Iwo Jima vs Polnocny
Iwo Jima vs Polnocny at a glance — displacement 18,474 vs 834 tons, length 180 vs 73 m, speed 22 vs 18 knots, crew 667 vs 41.
Specifications
|
Iwo Jima |
Polnocny |
| Origin |
🇺🇸 United States |
🇵🇱 Poland |
| Category |
Amphibious vessel |
Amphibious vessel |
| Type |
Amphibious assault ship |
Tank landing ship |
| Manufacturer |
Puget Sound Naval Shipyard |
Stocznia Północna |
| Year introduced |
1961 |
1967 |
| Number built |
7 units |
108 units |
| Estimated unit price |
NA |
NA |
| Displacement |
18,474 tons |
834 tons |
| Maximum speed |
22.0 knots |
18.0 knots |
| Range |
11,000 nm |
1,000 nm at 18 knots |
| Length |
180.0 m |
73.0 m |
| Beam |
26.0 m |
9.6 m |
| Crew |
667 |
41 |
Armament & Systems
|
Iwo Jima |
Polnocny |
| Armament |
- 2 × 2 3-inch (76 mm) / 50-caliber DP guns
- 8 cell Sea Sparrow BPDMS launchers
- 2 × Phalanx CIWS
|
- Strela 2(SA-N-5) surface-to-air missile system (4 launchers)
- 30 mm AK-230 air defence gun (2 or 4 twin mounts)
- 140 mm Ogon 18-barreled rocket launcher(2)
|
| Propulsion |
2 × 600 psi (4.1 MPa) boilers, one geared steam turbine, one shaft, 22,000 shaft horsepower (16 MW) |
2 Soviet Kolomna 40-D two stroke diesels, 2 shafts, 4,400 bhp |
Detailed Comparison
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Which has greater displacement, the Iwo Jima-class or Polnocny-class?
The Iwo Jima-class has greater displacement at 18,474 tons compared to the Polnocny-class's 834 tons.
Which is faster, the Iwo Jima-class or Polnocny-class?
The Iwo Jima-class is faster with a maximum speed of 22 knots compared to the Polnocny-class's 18 knots.
Which has longer range, the Iwo Jima-class or Polnocny-class?
The Iwo Jima-class has a longer range at 11,000 nautical miles compared to the Polnocny-class's 1,000 nautical miles.
Which is longer, the Iwo Jima-class or Polnocny-class?
The Iwo Jima-class is longer at 180.0 meters compared to the Polnocny-class's 73.0 meters.
How many crew members do the Iwo Jima-class and Polnocny-class have?
The Iwo Jima-class has a larger crew complement of 667 compared to the Polnocny-class's 41 crew members.
Which has been built in greater numbers, the Iwo Jima-class or Polnocny-class?
The Polnocny-class has been built in greater numbers with 108 vessels compared to 7 vessels of the Iwo Jima-class.